The chemical equation above indicates the decomposition reaction of Zinc carbonate (ZnCO3) to produce Zinc oxide (ZnO) and Carbon dioxide (CO2). In terms of mole ratio, 2 moles of Zinc carbonate will yield 2 moles of Zinc oxide and 2 moles of Carbon dioxide.
- Reaction conditions:
The condition for the reaction to occur is that the temperature must be high enough. This reaction usually happens at temperatures above 300 degrees Celsius.
- Reaction process:
When the temperature reaches high enough, Zinc carbonate will start to decompose. This decomposition process will produce Zinc oxide and Carbon dioxide. This is a non-reversible chemical reaction process.
- Phenomena taking place:
During the reaction process, the solid Zinc carbonate will gradually turn into white powder form of Zinc oxide, while Carbon dioxide gas is released. This phenomenon can be recognized by observing the change in color and the gas release event.